<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <tr>
        <td content="2">rowspan</td>
        <td >tr1</td>
        <td >tr2
        </td>
    </tr>

    <tr>
        <td content="2">tr2</td>
        <td >tr2</td>
        <td >tr2</td>
    </tr>

    <tr>
        <td content="2">content</td>
        <td >col3</td>
        <td >col3</td>
    </tr>

    <tr>
        <td content="2">col1</td>
        <td >col2</td>
        <td >col3</td>
    </tr>



</table>
<hr>
<table border="1" >
    <tr>
        <td content="2" rowspan="2">rowspan</td>
        <td>tr1</td>
        <td>tr1</td>
    </tr>

    <tr>
        <td>tr2</td>
        <td>tr2</td>
    </tr>

    <tr>
    <td colspan="2">colspan</td>
    <td>col3</td>

</tr>
    <tr>
        <td colspan="1">col1</td>
        <td>co2</td>
        <td>co3</td>
    </tr>
</table>
</body>
</html>